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With the development of transmission systems, all-optical networks need to adapt and process signals utilizing advanced modulation formats. One key element of all-optical networks is all-optical logic gates. Yet few research works on all-optical logic gates are focused on processing such signals. In this letter, all-optical xor gates for optical quadrature phase-shift keying signals are proposed and...
Multiple microwave frequencies sensing ranging from 15 to 20 GHz is reported based on compressive sampling. A maximum detection error of 150 kHz is achieved using a single ADC with analog bandwidth of 826.75 MHz.
We demonstrate for the first time 160Gbaud to 40Gbaud phase-preserving demultiplex of OTDM-DQPSK signals using a dual parallel Mach-Zehnder modulator(DPMZM) driven by only one electrical clock. Error-free operation is achieved with ∼0.6 dB power penalty.
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